TESTO 175 - Page 10

3 Specifications
10
testo 175 H1 (0572 1754)
Feature Values
Measurement
parameter
Temperature (°C/°F), moisture (%rF
/%RH/ °Ctd/ g/m
3
)
Sensor type
NTC temperature sensor, capacitive
humidity sensor
Number of
measuring
channels
2x internal (stubs)
Measuring
ranges
-20 to +55 °C
-40 to +50 °Ctd
0 to 100 %rF (not for condensing
atmosphere)
3
System
accuracy
4
±2%rF (2 to 98%rF) at 25 °C
±0.03 %rF/K ± 1 digit
±0.4 °C (-20 to +55 °C) ± 1 digit
Long-term drift of
the sensor under
normal
conditions
<1 %RH/year (ambient temperature
+25 °C)
Usage conditions
All specifications call for an
atmosphere with a percentage of
harmful gases that does not exceed the
maximum allowable concentration
(MAC). A higher percentage of harmful
gases (e.g. ammonia or hydrogen
peroxide) may result in damage to the
sensor.
Resolution 0.1 %rF, 0.1 °C
Operating
temperature
-20 to +55 °C
Storage
temperature
-20 to +55 °C
Battery type
3x battery type AAA or Energizer L92
AAA-size cells
3
Long-term condensation in the system may result in
damage to the measuring instrument.
4
The use of sintered caps may affect the response time of
the sensor.
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